12.Calculate the wavelength of an object moving with a velocity of 5 x105 m s-1
.(h = 6.6x10-34 J s; mass of the object = 4 x10-22 kg)

Wavelength,

Explanation:

We have,

Velocity of the object,

Mass of the object,

It is required to find the wavelength of the object. The relation between wavelength and velocity of the object is given by :

h is Planck's constant

So, the wavelength of the object is .      

the mantle

explanation:

earth is divided into three layers: the crust or the outermost layer on which we live; the underlying, middle layer - the mantle - and the core (the innermost layer of earth).

lol for the pointsss